Part Number 550-141-186/0100
23
• Installation • Start-Up • Maintenance • Parts
Figure 22
Steam boiler control
installation
Figure 23
Steam boiler level control
locations (for Table 4)
Primary level control piping
components furnished.
Piping for backup control
by others.
Level controls must be mounted
on same side of boiler as the
equalizer and return piping.
Install 1" blowdown valve
in bottom of each cross.
1
Nipple, 1" x 4", (2)
2
Union, 1", (2)
3
Nipple, 1" x 2½", (2)
4
Cross, 1", (2)
5
Nipple, 1" x 2", (1)
6
Nipple, 1" x 7", (1) (used only
with Model 61 lwco; cut to fit
for other controls)
7
Plug, 1", (2)
8
Nipple, 1" x 3½", not
included
9
Nipple, 1" x cut to fit, not
included
10
Bushing, 1" x ¾", (1)
11
Nipple, ¾" x 4½", (1)
12
Cross, ¾", (1)
13
Nipple, ¾" x 2", (4)
14
Tee, ¾", (2)
15
Tee, ¾" x ¼", (3)
16
Nipple, ¼" x 1½", (3)
17
Plug, ¾", (5)
18
Nipple, ¾" x 3½" (1)
186-22
1
2
3
4
5
6
Primary
level
control
Back-up
water level
control
(when used)
Gauge
glass
Return
Pressure operating
and limit controls
and pressure gauge
7
7
8
9
10
11
18
12
14
15
15 17
16
16
13
A
B
Location 1
(primary)
Location 2
(back-up)
Gauge Glass
& Valves
186-23
